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Starter Relay Circuit

NOTE: Verify normal engine cranking before performing this test.
  1. Place transmission in Neutral. Turn ignition off. Disconnect anti-theft/door lock control ECU connectors T7 and T8. Turn ignition on. Using a voltmeter, measure voltage between ECU 25-pin connector T8 terminal No. 25 (Blue/Orange wire) and body ground. See Figure. See WIRING DIAGRAMS . If voltage is 10-14 volts, go to next step. If voltage is not 10-14 volts, repair or replace wire harness and connectors between starter relay and anti-theft/door lock control ECU.
  2. Check anti-theft/door lock control ECU pin voltages. See ANTI-THEFT/DOOR LOCK CONTROL ECU PIN VOLTAGE TESTS  under COMPONENT TESTS. Replace as necessary and retest system operation.
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